Failures? I have heard of the lower control arm bolt (3/4)shearing off just backing up. My friend received gusset plates to weld on as a fix. I agree there is too much stress in that area. Way too much money for what you get. In the race car we put a rack in the k-frame turned the spindles around bent the arms till the bump was right and run it for years and no problems. He just wants to show off his coil overs on the street car, his money.